Synytska Alla, Stamm Manfred, Diez Stefan, Ionov Leonid
Leibniz-Institute of Polymer Research, 01069 Dresden, Germany.
Langmuir. 2007 Apr 24;23(9):5205-9. doi: 10.1021/la063601y. Epub 2007 Mar 22.
We report on the fabrication of micropatterned polymer surfaces that allow the reversible inversion of surface topography, charge, and wettability. Micropatterned surfaces were prepared by grafting two oppositely charged polyelectrolytes (poly(acrylic acid) and poly(2-vinylpyridine)) using a combination of photolithography, "lift off", and "grafting to" techniques. The switchable surfaces are of interest in microprinting and for the design of microfluidic devices and programmed protein adsorption.
我们报道了微图案化聚合物表面的制备，该表面能够实现表面形貌、电荷和润湿性的可逆反转。通过光刻、“剥离”和“接枝到”技术相结合的方法，接枝两种带相反电荷的聚电解质（聚丙烯酸和聚2-乙烯基吡啶）来制备微图案化表面。这种可切换表面在微印刷、微流控装置设计以及程序化蛋白质吸附方面具有重要意义。
